Normalized Centrifugal Pump — Series FBCN

FBCN centrifugal pumps are used in chemical, petrochemical, oil & gas, paper & pulp, steel, mining, water treatment and general industrial applications requiring high flow rates and reliability.

The Back Pull-Out design allows complete removal of the pump internals (impeller, shaft, bearings, mechanical seal) without disconnecting the piping or moving the motor, reducing maintenance time significantly.

FBCN centrifugal pumps offer flow rates up to 2,200 m³/h with head up to 135 meters, suitable for high-capacity industrial processes. Nominal diameters range from DN25 to DN300 (43 standard models DN25-150 + 10 large capacity DN200-300).

The FBCN operates up to 260°C with the proper material configuration — cast iron up to 120°C nominal (16 bar), carbon steel up to 260°C (up to 25 bar depending on flange) and 316 stainless steel for aggressive fluids. Maximum allowable pressure decreases with temperature per the P×T curves in the FBCN Technical Manual.

The FBCN series has 53 models covering 8 suction DN groups (DN25 to DN300), with up to 6 distinct impeller diameters per model. Each model follows ASME B73.1 with Back Pull-Out design and is available in GG20 cast iron, nodular iron, carbon steel or 316 stainless steel.

Yes. The FBCN is the hydraulic base of the FBFS fire pump sets, complying with ABNT NBR 16704 and NBR 10897 (Brazilian system) and NFPA-20 (international reference). When specified for fire fighting duty, it receives red paint, a hydrostatic test certificate and a traceable performance curve.

Water/sanitation: GG20 cast iron (cost-optimized, long life). Chemical/petrochemical: carbon steel or nodular iron depending on corrosion and pressure; 316 stainless steel for acids and aggressive fluids. FB Bombas validates the specification against the chemical compatibility table for the informed fluid.

The changeover starts from the dimension designation of the installed pump. Under ASME B73.1, units of the same designation — from any source of supply — are interchangeable as to mounting dimensions, suction and discharge nozzles, input shaft, baseplate and foundation bolt holes. Once the designation is identified, application engineering selects which of the 53 FBCN models takes over the duty, confirms the Q×H point and the available NPSH, and the complete pump is supplied for the existing baseplate. Back pull-out construction, flow up to 2,200 m³/h and head up to 135 m, fully manufactured in Cabreúva-SP since 1944 with a hydraulic test bench. CRCC Petrobras qualified supplier (Family 6 — Rotating Equipment).

Yes, when the dimension designation is the same — that is precisely what standardization exists for. ASME B73.1 fixes the installation envelope (mounting dimensions, size and location of the nozzles, input shaft, baseplate and bolt holes), so baseplate, piping and foundations stay and only the pump is exchanged. What the standard does not fix are the internal parts or the hydraulics: impeller, seal and clearances follow each manufacturer's own design, and the duty point must be checked. The 53 models cover DN25 through DN300, with ISO 21940 G2.5 dynamic balancing and hydrostatic testing at 1.5× design pressure.

Six figures close the analysis: flow (Q, in m³/h) and head (H, in m) at the duty point; NPSH available at the installation; temperature and nature of the fluid; flange class and facing; and the dimension designation of the current pump, read from its nameplate or drawing. With these, application engineering confirms which of the 53 hydraulic models (DN25 to DN300) fits, whether the baseplate is reused and which material applies. Compliance with ASME B73.1 and ISO 21940 G2.5, CRCC Petrobras Family 6 qualification and direct technical support from the application engineering team.

Yes — that is the core range of the series. The FBCN is the normalized end-suction centrifugal for process and cooling water, industrial effluent, utilities, transfer and plant auxiliary services. There are 53 hydraulic models in a single catalog (43 standard + 10 large-capacity DN200-300), back pull-out construction, selected by duty point rather than by pipe size. CRCC Petrobras Family 6 qualified supplier, with in-house CNC machining, assembly and hydraulic test bench in Cabreúva-SP.

Material is set by the fluid and the temperature, not by the model. The FBCN is manufactured in ASTM A48 CL30 and FC-250 cast iron for water and utilities; AISI 316 (CF8M) stainless for corrosive fluids; ASTM A536 ductile iron for higher mechanical strength; ASTM A216 WCB carbon steel for process duty; and ASTM B584 bronze for seawater and marine applications. Built per ASME B73.1, back pull-out, flow up to 2,200 m³/h, head up to 135 m and temperature up to 260°C, with ISO 21940 G2.5 dynamic balancing in Cabreúva-SP.

API 610 (Centrifugal Pumps for Petroleum, Petrochemical and Natural Gas Industries) is the American Petroleum Institute standard for refining, petrochemicals and gas — it demands more robust construction (mandatory back pull-out, oil-bath bearings, minimum MTBR, carbon-steel/stainless materials from class S6/S7 upward), extended pressure and temperature ranges and bench testing with ISO 21940 G2.5 balancing. ASME B73.1 (Horizontal End Suction Centrifugal Pumps for Chemical Process) is the American Society of Mechanical Engineers standard for chemical processing: it defines a standardized dimensional footprint (DN25 to DN300), hydraulic tolerances and ANSI flange — enabling cross-manufacturer retrofit. The FBCN is an ASME B73.1 pump (chemical process): standardized dimensional footprint, ANSI B16.1/B16.5 flanges, back pull-out construction, ISO 21940 G2.5 balancing and hydrostatic testing at 1.5× design pressure — it is not an API 610 pump. In critical refining, where API 610 is the default specification, FB Bombas serves on request as engineered-to-order special solutions; in chemical/petrochemical, water and sanitation, the FBCN catalog line (ASME B73.1) is the correct specification.

Yes. All 53 models in the FBCN line are built per ASME B73.1 — Specifications for Horizontal End Suction Centrifugal Pumps for Chemical Process. Flanges per ANSI B16.1 (cast iron Class 125/250), ANSI B16.5 (steel/stainless) or ASME B16.42 (ductile iron), part numbering per DIN EN 24250, ISO 21940 G2.5 dynamic balancing and hydraulic test bench. Each pump undergoes hydrostatic testing at 1.5× design pressure before shipping from Cabreúva-SP.

FBCN construction follows ASME B73.1, the North American dimensional standard. For projects requiring compatibility with pumps dimensioned per EN 733 (the European standard that superseded DIN 24255), FB Bombas' application engineering evaluates dimensional flange/footprint equivalence on a case-by-case basis. The company operates under product-level standards compliance (ASME B73.1 + ISO 21940 G2.5), without ISO 9001 quality management certification.

The FBCN is a normalized centrifugal pump compliant with ASME B73.1 (chemical process, horizontal end-suction) — it is not an API 610 pump. Covers flow up to 2,200 m³/h, head up to 135 m and temperature up to 260°C, with back pull-out construction, ISO 21940 G2.5 dynamic balancing and hydraulic test bench. For refining/oil and gas projects requiring API 610, FB Bombas serves on request as engineered-to-order special solutions. It is a CRCC Petrobras qualified supplier in Family 6 — Rotating Equipment.

Yes. FB Bombas is a qualified supplier in Petrobras' Cadastro de Registro Cadastral de Contratados (CRCC) under Family 6 — Rotating Equipment, eligible to supply industrial pumps for Brazilian Oil & Gas projects. The company operates under active corporate registry 61.381.240/0001-78, publicly verifiable at Brazilian Federal Revenue, and has been in continuous operation under the same corporate identity since 1944.

FBCN lead time is defined case by case by the application engineering team in Cabreúva-SP, considering the model (among 53 available), materials (cast iron FC-250, AISI 316, etc.) and specific configurations. Because manufacturing is fully Brazilian — in-house CNC machining, assembly and hydraulic test bench — lead times tend to be significantly shorter than equivalent imported pumps, with no dependency on international logistics, customs clearance or intercontinental transit time. Technical quotation available via the commercial form.

The FBCN technical quote is requested directly from the application engineering team. Provide flow (Q in m³/h), total head (H in m), operating temperature, fluid, available NPSH and desired materials. The FBCN technical manual — including Q×H×P curves, pressure×temperature table, construction dimensions and materials — is available at /en/technical-manuals/fbcn in Portuguese, English and Spanish, free for download in PDF.

The FBCN technical manual (MTEC-03/00) defines the construction, dimensioning and testing specification of the line. The pump is dimensionally and mechanically compliant with ASME B73.1, with back-pull-out construction (allowing the bearing assembly to be removed from the volute without disconnecting the flange). The Hydrostatic Test Pressure is declared In accordance with ANSI B73.1. Flanges follow dual standardization: cast iron per ANSI B16.1 (125 Lb FF / 250 Lb FF) and steels or ductile iron per ANSI B16.5 or B16.42 (150 Lb RF). Part numbering per DIN EN 24250. These dimensional standards facilitate retrofit in existing installations that use normalized centrifugal pumps — standardized flange and footprint within the international catalog. The full manual with Q×H curves, per-component materials and construction details is available at /en/technical-manuals/fbcn in Portuguese, English and Spanish, free for download in PDF.